Home / 87,376.20-130,950.90-40,529.40

Finding the Fourth Proportional to 87,376.20, 130,950.90 and 40,529.40

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Solution

The fourth proportional to 87,376.20, 130,950.90 and 40,529.40 is: 60,741.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,376.20 : 130,950.90 = 40,529.40 : x
  2. Step 2: Convert to fraction form
    87,376.20/130,950.90 = 40,529.40/x
  3. Step 3: Cross multiply
    87,376.20x = 130,950.90 × 40,529.40
  4. Step 4: Simplify right side
    87,376.20x = 5,307,361,406.46
  5. Step 5: Solve for x
    x = 5,307,361,406.46/87,376.20
  6. Step 6: Final answer
    x = 60,741.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.